DEVICES USING SUPERCONDUCTIVE CRYSTALS

摘要

Binary memory storage devices and cryotrons utilizing superconducting crystals exhibiting an onset of superconductivity and a relatively weak flux exclusion at a temperature T1 and the onset of relatively strong flux exclusion at T2, where T1>T2>77K, are controlled by dc magnetic fields. The preferred superconducting crystals have the formula Bi2Sr3-zCazCu2O8+w wherein z is from about 0.1 to about 0.9 and w is greater than zero but less than about 1.